Mild regurgitation of the mitral and tricuspid valves means that during the contraction phase of the heart, the mitral and tricuspid valves cannot close completely, resulting in a slight imperfection in closure. This causes a small amount of blood to flow back from the ventricle into the atrium. Since the closure imperfection is minor, the volume of the regurgitating blood is not significant. If not accompanied by any organic disease, this type of regurgitation typically does not lead to adverse outcomes and does not require treatment. However, if the patient has an organic disease, especially organic heart disease, it is crucial to actively control the related diseases to prevent aggravation, which could worsen the condition of mitral and tricuspid valves regurgitation, leading to more severe regurgitation.